elecbrick (Doug Eaton)

Doug Eaton's "Programming the LEGO Micro Scout" is the upstream write-up of the VLL frame, and it carries an opcode generator. Both pbrick.info and adriansieber cite it.

What it documents

• Defines the VLL frame (start / checksum / data / stop) and the VLL opcode table.
• Origin of the older "stop = 15" value (which the real brick ignores; rcxvll.nqh (pbrick) uses 10) — see VLL opcode table.

The site returns HTTP 500 on every path, and the certificate is not the reason: it is valid. Reach the content through the Wayback Machine.

Links

• elecbrick.com/vll — Doug Eaton's VLL reference and opcode generator, the origin of the older stop value 15
• Reachable through the Wayback Machine while the site answers HTTP 500